#include "util.hpp"

namespace bigmath {

    u64 ipow(u64 b, u64 p) {
        // FROM stack overflow
        // "The most efficient way to implement [int pow]"
        u64 r = 1;
        for(;;) {
            if(p & 1) r *= b;
            p >>= 1;
            if(!p) break;
            b *= b;
        }
        return r;
    }

}